The table below shows the number of diagonals in certain
polygons. Which expression describes the number of
diagonals in a polygon with n sides?
Please help I really need it I’ll give brainliest
![The table below shows the number of diagonals in certain polygons Which expression describes the number of diagonals in a polygon with n sides Please help I rea class=](https://us-static.z-dn.net/files/dcc/a56cfc92e706ace4dbddfb6ed62c1c77.png)